I picked up an S300 unit from a friend. It's installed in a P28. I was running my car (Stock GSR--Intake, header, exhaust) on just your old plain run of the mill OBD1 P72. I have a car I plan to put this S300 on, but was trying to run it on the relatively stock car (which doesn't throw any CELs on the OBD1 P72) to make sure everything was ok.

Well, the unit is throwing code 23 for the Knock Sensor when I run it on the S300. When I run it on the regular P72...no CEL. Any suggestions, guys?

Specs:

S300 installed in P28 running stock JDM P72 map.
Car: 99 GSR I/H/E. I'm using a jumper harness that I was using with the OBD1 P72.

I drove it yesterday on the P72...no CEL. Drove it today on the S300, throws Code 23. Reinstalled the P72...no CEL.

What do you guys think?

 

All these views and NO replies? C'mon guys, I need some help, here!

 

The p28 ecu has no knock sensor cirq. Go into your paremeters in the s300 software & disable the knock sensor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phearable &raquo;</TD></TR><TR><TD CLASS="quote">The p28 ecu has no knock sensor cirq. Go into your paremeters in the s300 software & disable the knock sensor. </TD></TR></TABLE>

Thanks John. I was looking and looking for that option and couldn't find it. Looked in Settings, Sensors, etc. Thanks for letting me know it's in PARAMETERS.

Is that why the system is throwing that code? B/c the P28 doesn't have knock?